Home / 387,029.23-580,313.89-147,160.69

Finding the Fourth Proportional to 387,029.23, 580,313.89 and 147,160.69

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Solution

The fourth proportional to 387,029.23, 580,313.89 and 147,160.69 is: 220,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,029.23 : 580,313.89 = 147,160.69 : x
  2. Step 2: Convert to fraction form
    387,029.23/580,313.89 = 147,160.69/x
  3. Step 3: Cross multiply
    387,029.23x = 580,313.89 × 147,160.69
  4. Step 4: Simplify right side
    387,029.23x = 85,399,391,733.18
  5. Step 5: Solve for x
    x = 85,399,391,733.18/387,029.23
  6. Step 6: Final answer
    x = 220,653.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.